ETC LCDA12C

05076
PLCDA03
thru
PLCDA24
. . . engineered solutions for the transient environment™
BIDIRECTIONAL LOW CAPACITANCE TVS ARRAYS
APPLICATIONS
✔ Ethernet - 10/100 Base T
✔ FireWire, SCSI & USB
✔ Audio/Video Inputs
✔ xDSL Interfaces
✔ Cellular Phone Terminals
IEC COMPATIBILITY (EN61000-4)
✔ 61000-4-2 (ESD): Air - 15kv, Contact - 8kv
✔ 61000-4-4 (EFT): 40A - 5/50ns
✔ 61000-4-5 (Surge): 24A, 8/20µs - Level 2(Line-Gnd) & Level 3(Line-Line)
SO-8
FEATURES
✔ 500 Watts Peak Pulse Power Dissipation(tp = 8/20µs)
✔ Bidirectional Configuration
✔ Available in 6 Voltage Types: 3.3V to 24V
✔ Protects Up to Two (2) Lines
✔ ESD Protection > 40 kilovolts
✔ LOW CAPACITANCE -5pF
MECHANICAL CHARACTERISTICS
✔ Molded JEDEC SO-8
✔ Weight 15 milligrams (Approximate)
✔ Flammability Rating UL 94V-0
✔ 12mm Tape and Reel Per EIA Standard 481-1-A
✔ Device Marking Code & Logo
✔ Pin 1 Indicated By Dot on Package
CIRCUIT DIAGRAM
05076.R5 1/02
1
8
2
7
3
6
4
5
1
Note 1: For bidirectional applications,
connect external pins 1 &2, 3 & 4, 5 & 6
and 7 & 8 as shown in the circuit
diagram.
Note 2: Do not surge from pins 8 to 1, 2
to 7, 6 to 3, and 4 to 5. PIV typically
greater than 100V for each rectifier die.
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PLCDA03
thru
PLCDA24
DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
PARAMETER
Operating Temperature
Storage Temperature
SYMBOL
VALUE
UNITS
TJ
-55°C to 150°C
°C
TSTG
-55°C to 150°C
°C
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
PART
NUMBER
(See Note 1)
(See Note 2)
DEVICE
MARKING
SGA
SGB
SGF
SGC
SGD
SGE
PLCDA03
PLCDA05
PLCDA08
PLCDA12
PLCDA15
PLCDA24
RATED
STAND-OFF
VOLTAGE
MINIMUM
BREAKDOWN
VOLTAGE
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
VWM
VOLTS
@ 1mA
V(BR)
VOLTS
@ IP = 1A
VC
VOLTS
3.3
5.0
8.0
12.0
15.0
24.0
4.5
6.0
8.5
13.3
16.7
26.7
7.0
9.8
13.4
19.0
24.0
43.0
MAXIMUM
LEAKAGE
CURRENT
MAXIMUM
CAPACITANCE
(See Note 3)
@8/20µs
VC @ IPP
@VWM
ID
µA
0V @ 1 MHz
C
pF
10.9V @ 43.0A
13.5V @ 42.0A
16.0V @ 34.0A
25.9V @ 21.0A
30.0V @ 17.0A
49.0V @ 12.0A
125
20
10
1
1
1
5
5
5
5
5
5
Note 1: Spice model and parameters for this series are available on the ProTek Devices web site: www.protekdevices.com.
Note 2: Devices are designed to be used in parallel (See Circuit Diagram). For other applications, contact the factory. Do not apply surge in the
“forward” direction of the TVS.
Note 3: Do not surge from pins 8 to 1, 2 to 7, 6 to 3 and 4 to 5. PIV typically greater than 100V for each rectifier die. Electrical characteristics apply
to pins 1 to 8, 7 to 2, 3 to 6 and 5 to 4.
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
IPP - Peak Pulse Current - % of IPP
PPP - Peak Pulse Current - Watts
10,000
500W, 8/20µs Waveshape
1,000
100
10
0.01
05076.R5 1/02
FIGURE 2
PULSE WAVE FORM
120
tf
100
Peak Value IPP
80
e-t
TEST
WAVEFORM
PARAMETERS
tf = 8µs
td = 20µs
60
40
td = t I /2
PP
20
0
1
10
100
td - Pulse Duration - µs
1,000
10,000
2
0
5
10
15
t - Time - µs
20
25
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PLCDA03
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PLCDA24
GRAPHS
FIGURE 3
POWER DERATING CURVE
100
40
Peak Pulse Power
8/20µs
5 Volts per Division
80
% Of Rated Power
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR PLCDA05
60
40
30
20
10
20
0
Average Power
0
0
25
50
75
100
125
TL - Lead Temperature - °C
150
ESD Test Pulse: 25 kilovolt, 1/30ns (waveshape)
VC - Clamping Voltage - Volts
FIGURE 5
TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT
30
PLCDA15
20
10
0
0
2
4
6
8
IPP - Peak Pulse Current - Amps
10
FIGURE 6
INSERTION LOSS - PLCDA05
FIGURE 7
RETURN LOSS - PLCDA05
20 db
10 db per Division
10 db per Division
20 db
Ref 0 db
-20 db
Ref 0 db
-20 db
-50 db
-50 db
100 MHz per Division
05076.R5 1/02
12
100 MHz per Division
3
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PLCDA03
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PLCDA24
APPLICATION NOTE
The PLCDA Series are low capacitance, bidirectional TVS arrays that are designed to protect I/O or high speed data lines from the damaging effects
of ESD or EFT. This product series has a surge capability of 500 Watts PPP per line for an 8/20µs waveshape and offers ESD protection > 40kv.
BIDIRECTIONAL COMMON MODE CONFIGURATION (Figure 1)
Ideal for use in USB applications, the PLCDA Series provides up to two (2) lines of protection in a common mode configuration as depicted in Figure
1.
Circuit connectivity is as follows:
✔ Pins 1 & 2 and 3 & 4 are connected to Ground.
✔ Pins 5 and 6 are connected to I/O Line D+.
✔ Pins 7 and 8 are connected to I/O Line D-.
CIRCUIT BOARD LAYOUT RECOMMENDATIONS
Circuit board layout is critical for Electromagnetic Compatibility (EMC) protection. The following guidelines are
recommended:
✔
✔
The path length between the TVS device and the
protected line should be minimized.
All conductive loops including power and ground loops
should be minimized.
✔
The transient current return path to ground should be
kept as short as possible to reduce parasitic inductance.
USB
IC
D-
The protection device should be placed near the input
terminals or connectors, the device will divert the
transient current immediately before it can be coupled
into the nearby traces.
✔
✔
D+
8
7
6
5
1
2
3
4
GND
Figure 1. Typical Common-Mode USB Protection Circuit
Ground planes should be used whenever possible.
For multilayer PCBs, use ground vias.
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PLCDA03
thru
PLCDA24
PACKAGE OUTLINE & DIMENSIONS
PACKAGE OUTLINE
SO-8
-A-
8
5
-B-
0.010” (0.25 MM)
P
M B M
4 PL
1
PACKAGE DIMENSIONS
4
DIM
D
G
C
R X 45º
0º - 10º
-TJ
K
0.010” (0.25 MM)
M T B S
F
A S
8 PL
MOUNTING PAD
4.80
3.80
1.35
0.35
0.40
1.27 BSC
0.18
0.10
5.80
0.25
INCHES
MIN
MAX
5.00
0.189
0.196
4.00
0.150
0.157
1.75
0.054
0.068
0.49
0.014
0.019
1.250
0.016
0.049
1.27 BSC 0.05 BSC 0.05 BSC
0.25
0.007
0.009
0.25
0.004
0.008
6.20
0.229
0.244
0.50
0.010
0.019
NOTES:
1. - T - = Seating Plane and Datum Surface.
2. Dimensions “A” and “B” are Datum.
3. Dimensions “A” and “B” do not include mold
protrusion.
4. Maximum mold protrusion is 0.015” (0.380 mm)
per side.
5. Dimensioning and tolerances per ANSI Y14.5M,
1982.
6. Dimensions are exclusive of mold flash and metal
burrs.
0.050” ± 0.005”
0.030” ± 0.005”
0.160” ± 0.005”
A
B
C
D
F
G
J
K
P
R
MILLIMETERS
MIN
MAX
0.245” MIN
0.045” ± 0.005”
06009 Rev 1 -11/01
TAPE & REEL PACKAGING:
Surface mount product is taped and reeled in accordance with EIA-481, reel quantites
and sizes are as follows:
7 Inch Reel - 1,000 pieces per reel; 13 Inch Reel - 2,500 pieces per reel
ProTek Devices
2929 South Fair Lane, Tempe, AZ 85282
Tel: 602-431-8101 Fax: 602-431-2288
E-Mail: [email protected]
Web Site: www.protekdevices.com
COPYRIGHT © ProTek Devices 2001
SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC).
DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and specifications is the buyer’s and that in furnishing engineering and
technical assistance, ProTek assumes no responsibility with respect to the selection or specifications of such products.
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